3.25.2 html 1205 30 1 false 94 0 false 6 false false R1.htm 030000 - Disclosure - Form N-CSR Cover Sheet http://xbrl.sec.gov/oef/role/NcsrCover Form N-CSR Cover Cover 1 false false R2.htm 030001 - Disclosure - Shareholder Report Sheet http://xbrl.sec.gov/oef/role/ShareholderReport Shareholder Report Notes 2 false false R3.htm 040010 - Disclosure - Shareholder Report, Line Graph (Details) Sheet http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails Shareholder Report, Line Graph (Details) Details 3 false false R4.htm 040015 - Disclosure - Shareholder Report, Average Annual Return (Details) Sheet http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails Shareholder Report, Average Annual Return (Details) Details 4 false false R5.htm 040020 - Disclosure - Shareholder Report, Holdings (Details) Sheet http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails Shareholder Report, Holdings (Details) Details 5 false false All Reports Book All Reports amana-20250531.xsd primary-document.htm epub11291469021184.jpg epub11398843203584.jpg i0bdf5b0347f086b84f3c51fa.jpg i1318de7150d04ac9cce4aa43.jpg i161bae58339fd578564dd393.jpg i1a010976610ad6c0960bd173.jpg i239fd5d1d4f3b4564c54b6be.jpg i2793c01a2641995f1810623e.jpg i2daf20b9d819e88844c893df.jpg i40b2ce5cf6d855d6a27817af.jpg i427e6b48e0cdac95548d3068.jpg i45c3da73c5c144d35cd36ba7.jpg i4b3a7584ae3e857c06b99c33.jpg i4f5ebe8125dcbbcec167c932.jpg i562d5b943702eefc59ece9ba.jpg i594a62bf226b4fe382f8d836.jpg i5a1e5839f34c4819aa1d9d7d.jpg i5ec4019b6c9e1e1e89595261.jpg i5fabf81032ac04f85dae18e9.jpg i601ac82ebadbb9d0dc214580.jpg i6aa79fa1d35205626f4dbd7c.jpg i6caa72d9021b162f053d474b.jpg i780c07ce26bff805cb67c289.jpg i97b9c836da5b81f405197c51.jpg i9cc16f5f6146b6554f438dc9.jpg iab43a38ddcf263acba72d3d0.jpg iabfe7e75cb32090f87e0193d.jpg ieaf7a2aa594b72fed444e959.jpg iecd62be0478d37a5269e88fe.jpg if007eab1e5b16b1b0ff2d97c.jpg if12ea424c6e96ef9406d1f44.jpg if339303fc36af45ed1483f5c.jpg if35679861fc29410ec2151d3.jpg if8b82e91b8d7ad8bdb1bd8fe.jpg http://fasb.org/us-gaap/2024 http://xbrl.sec.gov/dei/2024 http://xbrl.sec.gov/oef/2024 false false